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I will not forget
I will not forget… I will not forget…
What is hidden in 3D image?
Brain Teasers
[4186] What is hidden in 3D image? - Stereogram - 3D Image - #brainteasers #stereogram #3Dimage
2017-08-01
Black American patentIn 1875, a U.S. patent was issued for a "Biscuit Cutter" was issued to black American inventor Alexander P. Ashbourne (No. 170,460). The device consisted of a number of metal cutters, which could have various plain or fancy shapes, mounted on a hinged plate attached to a molding board on which dough for cake or biscuits would be rolled out. The plate was then closed over the dough, allowing the cutters to cut through the dough, forming many shapes simultaneously. When the hinged plate was lifted, to simplify removal of the cut shapes, each cutter contained a spring-loaded plate of similar shape to eject the cut dough. Provision was made to store the rolling pin in a concave cross-bar along the back of the hinges.« |